Mercury Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercury
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Mercury ProblemsMisfire due to failed spark plugs or ignition coil
The automatic transmission may develop shifting concerns. On lower mileage vehicles, upgrading the software in the powertrain control module (PCM) and the transmission control module (TCM) may correct the problem. As the mileage increases, internal transmission damage can occur. Repairs could involve replacement of the valve body or a complete transmission rebuild. Whenever major transmission repairs are made, it is important to be sure the PCM and the TCM have the latest software updates to help prevent these issues from reoccurring.
The engine may overheat at idle when the AC is on. A new, upgraded fan motor and resistor may be required to correct this concern.
Mercury QuestionsWhere is the fuel filter located (1 answer)
I need to replace fuel filter
1977 mercury grand marquis
Since I have replaced the alternator my battery light stays on and it says to check charging system. Auto zone checked alternator and said it is working properly.
Mercury RecallsPassenger Frontal Air Bag Inflator Ruptures On Deployment
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.
The second stage of air bag deployment may not deploy, resulting in the increased risk of occupant injury. Dealers will inspect and replace the driver's front air bag module as necessary free of charge to resolve the concern.
The lighting control module may fail, resulting in the loss of headlight operation. Dealers will replace the lighting control module free of charge to resolve the concern.